India, Jan. 11 -- A British national of Indian origin and vocal critic of the BJP-led government on social media was detained on arrival at the Chhatrapati Shivaji Maharaj International Airport for over 15 hours.

Police said London-based Dr Sangram Paril and his wife were detained at 2am on Saturday based on a First Information Report (FIR) registered against him at the N M Joshi Marg police station on December 18. Patil had posted material that allegedly defamed Prime Minister Narendra Modi.

"They were detained by immigration authorities on the basis of a Look Our Circular issued against him on the basis of the FIR," said a police officer.

Police said Patil had a strong following on social media and had written several defamatory arti...